GHSA-JHF6-8MMM-JXFR

Vulnerability from github – Published: 2025-10-22 15:31 – Updated: 2025-10-22 15:31
VLAI?
Details

In the Linux kernel, the following vulnerability has been resolved:

xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()

As 'kdata.num' is user-controlled data, if user tries to allocate memory larger than(>=) MAX_ORDER, then kcalloc() will fail, it creates a stack trace and messes up dmesg with a warning.

Call trace: -> privcmd_ioctl --> privcmd_ioctl_mmap_resource

Add __GFP_NOWARN in order to avoid too large allocation warning. This is detected by static analysis using smatch.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-50575"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-22T14:15:42Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()\n\nAs \u0027kdata.num\u0027 is user-controlled data, if user tries to allocate\nmemory larger than(\u003e=) MAX_ORDER, then kcalloc() will fail, it\ncreates a stack trace and messes up dmesg with a warning.\n\nCall trace:\n-\u003e privcmd_ioctl\n--\u003e privcmd_ioctl_mmap_resource\n\nAdd __GFP_NOWARN in order to avoid too large allocation warning.\nThis is detected by static analysis using smatch.",
  "id": "GHSA-jhf6-8mmm-jxfr",
  "modified": "2025-10-22T15:31:10Z",
  "published": "2025-10-22T15:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50575"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0bf874183b32eae2cc20e3c5be38ec3d33e7e564"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46026bb057c35f5bb111bf95e00cd8366d2e34d4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4da411086f5ab32f811a89ef804980ec106ebb65"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d68ae32d132ea2af73bc223fd64c46f85302a8b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0c5f1058ed96f2b7487560c4c4cbd768d13d065"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.